Compressor shell and compressor

Abstract

The compressor shell comprises a machine shell and a sleeve, the machine shell is of a barrel-shaped structure with one end open or two ends open, the sleeve is of a barrel-shaped structure with two ends open, an installation portion used for installing a motor stator is arranged in the machine shell, the sleeve is arranged on the peripheral wall of the machine shell in a sleeved mode, and the machine shell is of a barrel-shaped structure with one end open or two ends open. And the radial projection of the sleeve covers the mounting part. According to the compressor shell, under the condition that the thickness of a machine shell is not increased, the overall thickness can be increased through the sleeve, the overall thickness of a compressor on the outer side of the installation part is indirectly increased, and therefore the sound insulation capacity of the compressor is improved, the effect of reducing noise is achieved, and meanwhile the installation difficulty of the machine shell and a motor stator can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a compressor housing and a compressor. Background Art

[0002] The principle of the rotary compressor is to use a high-speed rotating motor to drive an eccentric shaft to compress the refrigerant in the cylinder, and realize the cooling and heating functions through the heat conversion of the refrigerant. The pulses generated by the high-speed rotation of the compressor motor and the mechanical friction of the pump body will inevitably cause the compressor to make noise.

[0003] Existing small compressors are mainly used in home environments such as indoor air conditioners and dehumidifiers, and are close to users. In order to reduce noise, thicker shells are usually used to improve the noise problem. However, when the existing compressor shell is combined with a smaller and less rigid motor stator, the thicker shell makes it easy for the motor stator to deform during heat-shrink molding. Another drawback of the thicker shell is that the operability is poor, and the parameters such as heating temperature and time are strictly controlled, and the operating efficiency is worse than that of ordinary thin shells. Utility Model Content

[0004] Based on this, the purpose of the utility model is to solve one of the technical problems existing in the prior art.

[0005] To this end, a first aspect of an embodiment of the utility model provides a compressor housing.

[0006] A second aspect of an embodiment of the utility model provides a compressor.

[0007] In view of this, the first aspect of an embodiment of the utility model proposes a compressor housing, comprising a casing and a sleeve, wherein the casing is a cylindrical structure with one end open or both ends open, and the sleeve is a cylindrical structure with both ends open, and the interior of the casing is provided with a mounting portion for mounting a motor stator, the sleeve is sleeved on the outer peripheral wall of the casing, and the radial projection of the sleeve covers the mounting portion.

[0008] Therefore, the embodiment of the utility model is to set and fix a sleeve on the compressor housing, and make the radial projection of the sleeve cover the mounting portion. In this way, without increasing the thickness of the casing, the overall thickness can be increased by the sleeve, and the thickness of the compressor housing outside the mounting portion is indirectly increased, thereby improving the sound insulation ability of the compressor, thereby achieving the effect of improving noise. In addition, the embodiment of the utility model can also reduce the difficulty of the matching connection between the compressor housing and the motor stator without increasing the thickness of the compressor housing through the combination of the sleeve and the compressor housing.

[0009] As an implementation mode, the axial length of the sleeve is greater than or equal to the axial length of the mounting portion. Therefore, the embodiment of the utility model defines the relationship between the axial length of the sleeve and the axial length of the mounting portion to ensure that the radial projection of the sleeve can completely cover the mounting portion, so that the local thickness of the housing corresponding to the motor stator is increased, thereby achieving the effect of improving noise.

[0010] As an implementation mode, the inner peripheral wall of the sleeve and the outer peripheral wall of the casing are fixed by shrink fitting. Thus, the sleeve of the embodiment of the utility model and the compressor casing are fixed together by shrink fitting, so as to form a firm integral casing structure.

[0011] As an implementation manner, the inner diameter of the sleeve is D1, the outer diameter of the housing is d1, and the relationship between the inner diameter D1 of the sleeve and the outer diameter d1 of the housing satisfies: -0.25mm<d1-D1<0.06mm.

[0012] As an implementation mode, the inner peripheral wall of the sleeve is fixed to the outer peripheral wall of the casing by welding. Thus, the sleeve of the embodiment of the utility model is fixed to the compressor casing by welding to form a firm integral casing structure.

[0013] As an implementation manner, the inner diameter of the sleeve is D2, the outer diameter of the housing is d2, and the relationship between the inner diameter D2 of the sleeve and the outer diameter d2 of the housing satisfies: -0.10mm<D2-d2<0.15mm.

[0014] As an embodiment, the outer peripheral wall of the sleeve is provided with a plurality of oblique grooves at intervals, and the sleeve is fixed to the outer side wall of the housing by laser welding at the oblique grooves. Therefore, the embodiment of the utility model can be used as a welding position for penetration welding by providing oblique grooves at intervals on the outer peripheral wall of the sleeve, thereby reducing the difficulty of welding operation.

[0015] As an embodiment, the outer peripheral wall of the sleeve is provided with a plurality of arc grooves at intervals, and the sleeve is fixed to the outer side wall of the housing by laser welding at the arc grooves. Therefore, the embodiment of the utility model can be used as a welding position for penetration welding by providing arc grooves at intervals on the outer peripheral wall of the sleeve, thereby reducing the difficulty of welding operation.

[0016] The second aspect of the embodiment of the utility model proposes a compressor, which includes the compressor housing in any of the above technical solutions, and also includes a motor stator, and the motor stator is fixedly mounted on the mounting portion. Therefore, the compressor has the advantages of the compressor housing in any of the above technical solutions, and can achieve the technical effects that can be achieved by the compressor housing in any of the above technical solutions. To avoid repetition, it will not be repeated here.

[0017] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the structural schematic diagrams of the compressor housing of an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A side view of the compressor housing is shown;

[0020] Figure 3 for Figure 2 A schematic cross-sectional view of the compressor housing along the AA direction is shown;

[0021] Figure 4 This is one of the structural schematic diagrams of the sleeve of an embodiment of the utility model;

[0022] Figure 5 This is the second structural schematic diagram of the compressor housing of the embodiment of the utility model;

[0023] Figure 6 for Figure 5 A side view of the compressor housing is shown;

[0024] Figure 7 for Figure 6 A schematic cross-sectional view of the compressor housing along the BB direction is shown;

[0025] Figure 8 This is the second structural schematic diagram of the sleeve of the embodiment of the utility model;

[0026] Fig. 9 This is the third structural schematic diagram of the compressor housing of the embodiment of the utility model;

[0027] Fig.10 for Fig. 9 A side view of the compressor housing is shown;

[0028] Fig.11 for Fig.10 A schematic cross-sectional view of the compressor housing in the CC direction is shown;

[0029] Fig.12 This is the third structural schematic diagram of the sleeve according to the embodiment of the utility model.

[0030] Description of reference numerals:

[0031] 10. Casing; 11. Mounting portion; 20. Sleeve; 21. Oblique groove; 22. Arc groove; 30. Motor stator. DETAILED DESCRIPTION

[0032] To further illustrate each embodiment, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention.

[0033] In the description of the present invention, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] The principle of the rotary compressor is to use a high-speed rotating motor to drive an eccentric shaft to compress the refrigerant in the cylinder, and realize the cooling and heating functions through the heat conversion of the refrigerant. The pulses generated by the high-speed rotation of the compressor motor and the mechanical friction of the pump body will inevitably cause the compressor to make noise.

[0035] Traditional small compressors are mainly used in home environments such as indoor air conditioners and dehumidifiers, and are close to users. In order to reduce noise, thicker shells are usually used to improve the noise problem. However, when the existing compressor shell is combined with a smaller and less rigid motor stator, the thicker shell makes it easy for the motor stator to deform during heat-shrink molding. Another drawback of the thicker shell is that the operability is poor, and the control of parameters such as heating temperature and time is strict, and the operating efficiency is worse than that of ordinary thin shells.

[0036] In view of this, an embodiment of the utility model provides a compressor housing to solve technical problems such as poor operability caused by the large thickness of the housing of a traditional compressor.

[0037] See also Figures 1 to 12The compressor housing of the embodiment of the utility model includes a casing 10 and a sleeve 20. The casing 10 is a cylindrical structure with one end open or both ends open, and the sleeve 20 is a cylindrical structure with both ends open. A mounting portion 11 for mounting a motor stator 30 is provided inside the casing 10. The sleeve 20 is sleeved on the outer peripheral wall of the casing 10, and the radial projection of the sleeve 20 covers the mounting portion 11.

[0038] Therefore, the embodiment of the utility model is to set and fix the sleeve 20 on the compressor housing, and make the radial projection of the sleeve 20 cover the mounting portion 11. In this way, without increasing the thickness of the compressor housing, the overall thickness can be increased by the sleeve 20, and the overall thickness of the compressor outside the mounting portion 11 is indirectly increased, thereby improving the sound insulation ability of the compressor, thereby achieving the effect of improving noise. In addition, the embodiment of the utility model can also reduce the difficulty of the matching connection between the compressor housing and the motor stator 30 without increasing the thickness of the compressor housing through the combination of the sleeve 20 and the compressor housing.

[0039] Optionally, the axial length of the sleeve 20 of the embodiment of the utility model is greater than or equal to the axial length of the mounting portion 11. Therefore, the embodiment of the utility model defines the relationship between the axial length of the sleeve 20 and the axial length of the mounting portion 11 to ensure that the radial projection of the sleeve 20 can completely cover the mounting portion 11, so that the local thickness of the compressor housing corresponding to the motor stator 30 is increased, thereby achieving the effect of improving noise.

[0040] In some embodiments of the present invention, the housing 10 is a cylindrical structure with an open end, and the motor stator 30 can be inserted into the housing 10 through the open end and fixed on the mounting portion 11. The motor stator 30 and the mounting portion 11 can be connected together by welding or heat-shrink fitting.

[0041] In some embodiments of the present invention, the housing 10 is a cylindrical structure with openings at both ends, and the motor stator 30 can be inserted into the housing 10 through the opening at one end and fixed on the mounting portion 11. The motor stator 30 and the mounting portion 11 can be connected together by welding or heat-shrink fitting.

[0042] In some embodiments of the present invention, the inner circumferential wall of the sleeve 20 is fixed to the outer circumferential wall of the casing 10 by shrink fitting. Thus, the sleeve 20 of the present invention and the compressor casing are fixed together by shrink fitting, so as to form a firm integral casing structure.

[0043] The inner diameter of the sleeve 20 is D1, the outer diameter of the housing 10 is d1, and the relationship between the inner diameter D1 of the sleeve 20 and the outer diameter d1 of the housing 10 satisfies: -0.25mm<d1-D1<0.06mm.

[0044] In some embodiments of the present invention, the inner circumferential wall of the sleeve 20 is fixed to the outer circumferential wall of the casing 10 by welding. Thus, the sleeve 20 of the present invention and the compressor casing are fixed together by welding to form a firm integral casing structure.

[0045] The inner diameter of the sleeve 20 is D2, the outer diameter of the housing 10 is d2, and the relationship between the inner diameter D2 of the sleeve 20 and the outer diameter d2 of the housing 10 satisfies: -0.10mm<D2-d2<0.15mm.

[0046] Optionally, the outer peripheral wall of the sleeve 20 is provided with a plurality of oblique grooves 21 at intervals, and the sleeve 20 is fixed to the outer side wall of the housing 10 by laser welding at the oblique grooves 21. Therefore, the embodiment of the utility model can be used as a welding position for penetration welding by providing oblique grooves 21 at intervals on the outer peripheral wall of the sleeve 20, thereby reducing the difficulty of welding operation.

[0047] Optionally, the outer peripheral wall of the sleeve 20 is provided with a plurality of arc grooves 22 at intervals, and the sleeve 20 is fixed to the outer side wall of the housing 10 by laser welding at the arc grooves 22. Therefore, the embodiment of the utility model can be used as a welding position for penetration welding by providing arc grooves 22 at intervals on the outer peripheral wall of the sleeve 20, thereby reducing the difficulty of welding operation.

[0048] The second aspect of the embodiment of the utility model proposes a compressor, which includes the compressor housing in any of the above technical solutions, and also includes a motor stator 30, and the motor stator 30 is fixedly mounted on the mounting portion 11. Therefore, the compressor has the advantages of the compressor housing in any of the above technical solutions, and can achieve the technical effects that can be achieved by the compressor housing in any of the above technical solutions. To avoid repetition, it will not be repeated here.

[0049] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the compressor housing and the compressor of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A compressor housing, Features: It includes a casing and a sleeve. The casing is a tubular structure with one end open or both ends open. The sleeve is a tubular structure with both ends open. A mounting portion for mounting a motor stator is provided inside the casing. The sleeve is sleeved on the outer peripheral wall of the casing, and the radial projection of the sleeve covers the mounting portion.

2. The compressor housing according to claim 1, Features: The axial length of the sleeve is greater than or equal to the axial length of the mounting portion.

3. The compressor housing according to claim 1, Features: The inner peripheral wall of the sleeve and the outer peripheral wall of the housing are fixed by shrink fitting.

4. The compressor housing according to claim 3, Features: The inner diameter of the sleeve is D1, the outer diameter of the housing is d1, and the relationship between the inner diameter D1 of the sleeve and the outer diameter d1 of the housing satisfies: -0.25mm<d1-D1<0.06mm.

5. The compressor housing according to claim 1, Features: The inner peripheral wall of the sleeve and the outer peripheral wall of the housing are fixed by welding.

6. The compressor housing according to claim 5, Features: The inner diameter of the sleeve is D2, the outer diameter of the housing is d2, and the relationship between the inner diameter D2 of the sleeve and the outer diameter d2 of the housing satisfies: -0.10mm<D2-d2<0.15mm.

7. The compressor housing according to claim 5, Features: The outer peripheral wall of the sleeve is provided with a plurality of oblique strip-shaped grooves at intervals, and the sleeve is fixed to the outer side wall of the housing by laser welding at the oblique strip-shaped grooves.

8. The compressor housing according to claim 5, Features: The outer peripheral wall of the sleeve is provided with a plurality of arc-shaped grooves at intervals, and the sleeve is fixed to the outer side wall of the housing by laser welding at the arc-shaped grooves.

9. A compressor, Features: It comprises the compressor housing according to any one of claims 1 to 8, and also comprises a motor stator, wherein the motor stator is fixedly mounted on the mounting portion.

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